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Spine

The spine is a column of 33 bones, called vertebrae, that stack on top of each other, extending from the base of the skull to the tailbone. Most vertebrae are separated by discs that acts as shock absorbers for the spine.

The spinal column is the main structure to support movement. The structures of the spine also surround and protect the spinal cord, which is a nerve that stretches from the base of the brain to the lower back. The spinal cord allows complex communication between the brain and the body.

The spine is also sometimes called the spinal column or backbone.

Author Jeannette Curtis
Author Caroline Rea, RN, BS, MS
Editor Kathleen M. Ariss, MS
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Tracy Landauer
Associate Editor Pat Truman, MATC
Primary Medical Reviewer Patrice Burgess, MD - Family Medicine
Primary Medical Reviewer Adam Husney, MD - Family Medicine
Primary Medical Reviewer Kathleen Romito, MD - Family Medicine
Last Updated May 25, 2007

WebMD Medical Reference from Healthwise

Last Updated: May 25, 2007
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